wehub-resource-sync
36 lines
885 B
Python
36 lines
885 B
Python
"""
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Function plotting demo.
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"""
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from mpmath import *
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def main():
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print("""
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Simple function plotting. You can enter one or several
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formulas, in ordinary Python syntax and using the mpmath
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function library. The variable is 'x'. So for example
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the input "sin(x/2)" (without quotation marks) defines
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a valid function.
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""")
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functions = []
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for i in range(10):
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if i == 0:
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s = input('Enter a function: ')
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else:
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s = input('Enter another function (optional): ')
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if not s:
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print()
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break
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f = eval("lambda x: " + s)
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functions.append(f)
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print("Added f(x) = " + s)
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print()
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xlim = input('Enter xmin, xmax (optional): ')
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if xlim:
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xlim = eval(xlim)
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else:
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xlim = [-5, 5]
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print("Plotting...")
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plot(functions, xlim=xlim)
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main()
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